Double disk-bearing for the furrow-openers of grain-drills.



nutren sr'rs maar nunca.

CHARLES TV. ROBINSON, UE HAMILTON', ONTARIO, CANAEA, ASSIGNGR TO INTER-NATIONAL HARVESTER COMPANY, CORPORATION OF NEW JERSEYS( DOUBLiEDISK-BEARNG FOR- THE FURROW-OPENERS OF GRAN-DRILLS.

latenitcd Nov. i911.

Applicatdn filed December 17, 1910. Serial No. 5S7,959.

To all whom it 'may concern:

Be it known that l, CHARLES W. RoninsoN., a citizen ofthe United States,residing at Hamilton, in the county of lllentworth, Province of Ontario,Dominion of Canada,

have invented" certain new and useful Im-I provenients in DoubleDisk-Bearings for the Furrow-Openers of Grain-Drills, of which thefollowing is a specication.

My invention relates to grain drills in its general application andspecifically to an improved journal bearing for use in connection withthe double furrow opener 'mechanism as embodied in the construction ofmachines of the character indicated; the object of my invention being toprovide a construction of bearing simple and strong, practical in itsoperation, readily assembled and etlicientin operation. l attain theseobjects by means of the mechanism illustrated by the accompanyingdrawing, in which- Figure l is a side elevation of a double disk furrowopener having one of the disks removed and having my invention embodiedin the construction thereof; Fig. 2 is a sectional view of Fig. l alongline fit-SB; Fig. 3 is an enlarged sectional detail of the lower end ofthe disk supporting bracket; Fig. t is a side elevation oi Fig. 3; Fig.5 is a plan view of one of the bearing blocks; Fig. 6 is a sideelevation ot' Fig. 5; Fig. 7 is a plan view of a spring presseddustexcluding washe'r and showing the manner of mountingit .upon thebearing block; and Fig. 8 represents one o'i the springs that isassociated with the washer.

The same reference characters designate like parts throughout theseveral views.

l represents a disk supporting bracket that may be attached to a dragbar inV any approved manner. The bracket is provided at its lower endwith circular surfaces that are inclined forward and downward at certainangles determined by the desired angle ot inclination of the furrowopening disks, and represents circular recesses upon opposite sidesthereof that are separated by means of an interior flange 3 thatpartially surrounds the recesses at their rear sides, as shown in Fig.4.

l represents one. of the. bearing blocks having an enlarged circularbase portion 5 adapted to be received by one of the recesses in a mannerto rotate therein, a like bearing block being placed in the recess atthe opposite side of the bracket. The bearing blocks are provided with areduced portion 6 having a longitudinally arranged groove 7 upon itspei'iphery,`the reduced portion of the block terminating in a shortangular portion 8, and 9 represents, a 'common Jform of plow bolt thatis received by an axial opening through the block ,and projects outwardtherefrom.

l0 represents hearing plates secured to opposite sides of 'the bracketand having cen# tral openings therein that receive the reduced portionsof the blocks, the plates engaging with the outer surfaces of the basemembers of the blocks in a manner to retain them in rotatable relationwith the bracket.

1 1 represents the furrow opening disks that are provided with centralangular openings adapted to receive the angular portions of thebcaringblocks.

l2 represent washers interposed between nuts 13 and the disks, wherebythe bearing block is secured to the disk in a manner to rotatetherewith.

la represents a dust excluding washer having a central opening toreceive the reduced portion 6 of the bearing block and adapted to move`longitudinally thereon and provided with a radially project-ing lipportion l5 adapted'to be received by the groove 7 in a manner to causethe washers to rotate with the blocks, and 16 represents coiledcompression springs interposed between the washers and inner 'tace votthe disks and operative to yieldingly press the washers against thebearing lates.

'The disk supporting bracket is providedsurrounding an axially arrangedrecess formed in said surface, a bearing block having a circular basemember' rotatably received by said recess, and a circular reducedportion projecting laterally, and axially from said base member, abearing plate se! cured to the Aside of said bracket and engaging withthe outer face of said base member in a manner to retain said bearingblock in 'loo i iio rotative re'iaffen W plate iav. the llucu saidreduced p rinion angular portion, vided with an mi ed to 'eoeve thebearing bock. rotatable elennnL ie iii En f J 7 Seonrng said wmmg block.

.Surrounding an @ly :n1-enge@ 1 en,- fol'nled 1n seul stuffs e aheaving; hoeli hau'- n", a manne? 1go )bemin smid bearing Mock inromtvre relation Wh said breoke, Said plete naming e central openingthat receives the reduced portion of Seid bearing block, Seid reducedportion terminating in a short minder portion, a .rotatable elementprovided with en axial angular opening adepted te receive he angularportion of said bearing Mock, means for seeming Seid ro; zliobe elementio said bearing' block, a wafs'ier mounted upon the reduced portion ofseid bearing boek in a manner to 'otate 'lefewtl, and e. Springoperative to press 'l washer in Coneet with Seid Wearing pleite. f

@i ELLES TT. ROBNSON.

'Yneesee H. Groen Jeux l". BAINBRTDGE.

